Typewriting machine



4, 1931- G. G. some 1,817,252

TYPNRITING MACHINE Filed April 19,1927 3 Sheets-Sheet I WITNESSES m IINVENTUR AITURNEY Aug. 4, 1931. s. G. some TYPEWRITING MACHINE FilegiApril 19, 1927 3 Sheets-Sheet 2 JNVENTUR M ATTORNEY Wfi'NESSES M; w

Aug. 4, 1931. s. G. some TYPEWRITING MACHINE s Sheets-Shet s" 'FiledApril 19. 192'! INVENTUR &m, a #5 ATTORNEY Patented Aug. 4, 1931 UNETEDSTATES PATENT OFFICE GEORGE G. GOING, OF MIDDLETOW'N, CONNECTICUT,ASSIGNOE, BY MESNE ASSIGN- MEETS, TO REMINGTON TYPEVJBITER COMPANY, ACGRPORATIQN OF NEW YORK TYPEYVRITING MACHINE Application filed April 19,

; extent of say, one, two and three minimum spaces, but may also beadjusted to providefor a variation from such spacing, as, for example,to provide for effecting at each actuation anirregular extent of linespacing correspondin to, say, 1 or 2 minimum line spaces, as may bedesired.

To the above and other ends which will hereinafter appear, my inventionconsists in the features of construction, arrangements of parts andcombinations of devices set forth in the following description andparticularly pointed out in the appended claims.

In the accompanying drawings wherein like reference characters designatecorresponding parts in the different views:

Figure 1 is a fragmentary, detail, enlarged, top plan view showing oneend of a carriage of a typewriting machine equipped with the devices ofmy invention.

Figure 2 is an enlarged, detail, fragmen-- tary, vertical sectional Viewof the same with parts omitted, the section being taken on the line 22of Fig. 1 and looking in he direction of the arrows at said line.

Figure 3 is an enlarged, detail, trans verse sectional view of thestructure taken on the line 33 of Fig. 1 and looking in he direction ofthe arrows at said line.

Figure 4 is a view corresponding to Fig. 1, but showing the parts infront elevation.

vFigure 5 is a detail plan view of the sheet metal blank from which theline spacing, pawl-carrier is formed.

Figure 6 is an enlarged, detail, perspec- 1927. Serial No. 184,929.

tive view of the line spacing regulator or shield shown detached.

Figure 7 is a detail, fragmentary, top plan View, with a part sectionedaway, of the pawl-carrier and the spring mounted thereon.

Figure 8 is an enlarged, Vertical sectional view of the carriage takenon the line 88 of Fig. 4 and looking in the direction of the arrows atsaid line.

Figure 9 is an enlarged, detail, fragmentary perspective view of theline spacing wheel and the detent therefor.

I have shown my invention embodied, in the present instance, in thecarriage of a No. 6 Remington-noiseless machine. \Vhile the devices ofmy invention may be readily incorporated in such machine withoutmodifying, or materially modifying, other structural features thereof,it should be understood that the invention is not restricted toemployment in said machine but is of general application and may beemployed in various styles of typewriting and like machines whereverfound available.

In the present instance the carriage comprises a supporting rail or bar1 to which end plates 2 are secured by screws 3. These end plates arealso connected by suitable cross bars, one of which is indicated at 4;.The carriage rail 1 is grooved on opposite sides, as indicated at 5, toreceive anti-friction rollers that in turn travel in grooved rails inthe case shift frame, not shown. The usual means (not shown) are alsoemployed in the rear of the carriage, which with the means describedsupport the carriage for case shift movement as well as for letter spacetraveling movement under control of the usual letter space mechanism,not shown.

A cylindrical platen 6 is supported in the ordinary manner for rotativeline space movement in bearing openings inthe end plates 2 of thecarriage. The left-hand hub 7 of the platen extends through a bearingopening in the associated end plate and is normally connected by theusual platen clutch (shown in part in Fig. 8) with a line spacing wheel8.

Ordinarily, heretofore, the teeth of a line spacing Wheel are such as toprovide for the use of one tooth for the minimum l1ne space to beefiected, so. that the line spacing wheel is shifted the extent of onetooth for single spacing, two teeth for double spacing, and three teethfor triple spacing,- in accordance with the adjustment of the,

line space regulating device. By my present invention 1 provide forsingle, double and triple spacing as heretofore, and also provide forline spacing the platen irregular distances, such for example asproviding for line spacing the platen the distance of 1 or 2 minimumline spaces, as may be desired. Therefore, the operator may set theregulator to provide for spacing; the platen theextent of 1, 11/ 2,.2or-lminimum; line. spaces;. as 'desirech This is: accomplished by thesimple expedient of sepa rating; the} teeth of the line spacing wheel analiquot part of a minimum line space;

andiproviding for the use of a plurality'of teeth; for. theminimum linespace producedon" the; machine ancl controlling the pawl to move theplaten the distance of an odd or even-number-of teetlniastwo,three,.tour, five or, six; teeth. shown I provide sixt' line spacingteeth 9. onthealine spacing; w eel, instead of thirty, as heretofore,and: provideregulating means wh icltmay beset toena'ble the line spacingpa wjil. to eiigage said teeth sooner or later insthe effectivestroke-ofthe pawl, and; thus shift the wheel and platenthe extent of two,three',- four,. five 01"SlX' teeth of the w-heel-, iasima-y' be desired,V Themec'hanism for controlling will nowbe described.

the wheel A detentfroller engages theteeth'ofthe- Wheel and is carriedby a spring-pressed carnier,- desi-gnated asa@ whole by the: referencenumeral 1-1. erablyg made of sheet metal and is bent so aSto-be-substantia-lly U-shaped' in crosssection, providing; side walls 12united by a rear connecting; wall 132 The detent roller is-receivedbetween the side walls 1 2. at the upper end thereof, and is supportedthereby on a pivot 1a. The side walls 125at llh8' a lower ends thereofare provided with bear- 111g? openingsthat receive a pivotal support 15..Thesupport15bears at one end against a- Washer 16? and is inthe natureof an eccentric That is to say, the member 15 I the companion end-plateWhen the screw 7 its" aha-s an: eccentrically' disposed openingtherethrough that receives the stem of a headed binding screw 16 onwhich the'ecce-ntric receiveaturning adjustment to drillerent setpositions. The rear end of the'screw .ai ter assin i throu h the inter)osed Washer isthreaded into. atapped opening in is; tightened it" willfirmly; hold the eccentric or pivotal support 15 in the rotati-veposition to which; it has been adjustedi with the In the particularexamplev This carrier is prefe aid of a hexagonal head 17 thereonr Thisprovides a pivotal support for the detent, and one which may be adjustedto vary the position of the detent roller to accord with the position ofthe engaged teeth of the wheel atthe end or" the throwof the linespacing pawl. A coiled expansion spring 18 bears at one end against theconnecting wall 13 of the carrier 11. The other end of this spring isseated in arecess 19 in a spacing collar 20 provided with reduced hubs20 Said collar is interposed between a dependingarm 2-1 of a supportingbracket, designatedas a wholeby the reference numeral 22, and theassociated end plate 2 of the carriage- This collar 20 is held in placeby a headed screw 23, the stem of: which passes throughregisteringpopenings in the arm 21 and in the collar. ,The inner end ofthe screw is. threaded into a tapped openin inrthe endplate, and whentightened constitutes a support for the bracket and also firmly inds andholds the'collar in place. I 7

The line-spacing pawl 24 is provided with a hook-like engaging. nose 25:which coacts with the teefh of the line spacingwheel and is pivoted atone end'on a pivot pin 26 car.- ried by a line spacing pawl-carrier,desig-v nated a whole by the reference numeral 27. This carrier is.preferably struck up from a single piece of sheet'meta-l, the blank forthe-carrier being, shownin Fig; 5. This carrier is formed from-a singlepiece with two'parallel side arms 28' bent up on the dotted linesindicated in Fig; 5; These arms are-united at their ends and lower edgesby two integral cross'pieces 29 and- 3O. Formed integral with one ofthe; side arms 28 at the upper edge'thereof is a cross pieceoreX-tension 3l which extends across the opening between and overliesthearms 28 of the carrier.- The cross piece or member 30 has a forwardextension 32' forconnection with the line spacing lever, as willpresently appear. The line spacing pawl ispivoted between the side arms28, extending forward and downward therefrom. The pivot 26 on which thepawl is mounted is riveted. at one endto one of said sidearms 28 andisseatedv atits other end in a registering opening 33 in the othersidearm. v p s A spring for forcing the pawl around its pivot towardstheline spacing, wheel is carried by the carrier 27. In the presentinstance this spring is a leaf spring 34 formed witha T-shaped head 35and lateral side enlargements 36'. The upper edges of the side arms 28have recesses 37 in the rear of the cross-piecej31. Each of theserecesses has depth corresponding substantially to thethickness of thespring, and the fore-andaft dimensions of each recess correspondssubstantially tothe width of an arm 35 oi? the; cross head? of thespring- This provides carriage to the right.

seats in which the cross head may be re- -ceived and firmly held againstmovement in any direction in the plane of the cross head. In thisconnection it will be observed that the enlargements 36 of the springcoact with the inner side walls of the arms 28 of the carrier, whereas,the sides of the reduced free end portion of said spring are free fromcontact with .the carrier. It will be seen that the force of the springforward of its cross head is at all times directed upward against andresisted by the cross piece 31 on the carrier, causing the cross head atall times to be forced down in its seat, thus firmly though detachablyanchoring one end of the spring to the carrier without any additionalmeans. These means enable the spring to be readily connected to itscarrier or support, and enables a broken or damaged spring to be readilyreplaced with a new one. For example, in order to connect a spring it ismerely necessary slip the free end of the spring from the rear beneaththe arm 31 and force the spring forward until the anchoring head 35seatsvitself in the recesses 37, and the spring is connected.

The carrier 27 is located above and is mounted for fore-and-aft movementon the supporting bracket 22, and overlies the line spacing wheel, beingsubstantially 1n the plane thereof. Thus, the rear end portion of thecarrier has its side arms 28 slotted longitudinally at 38 to receive asupporting pin 39. The supporting pin, as shown in Fig. 3, is in thenature of a shouldered,

headed screw received at its threaded end in a tapped opening in an arm40 on the bracket 22.. The threaded end of the screw extends beyond thebracket arm 40 and receives a shouldered lock nut 41. In this manner therear end of the carrier is supported for substantially rectilinearsliding movement fore-and-aft of the machine on the pin 39. The forwardend or extension .82 of the carrier is apertured at 42 (see Fig.

5) to receive a pivot pin 43 which is riveted to said extension. Thispivot pin is received in a bearing opening in an arm 44 of a linespacing lever to pivotally connect the lever arm with the carrier 27 atthe forward end thereof. The other, hand controlled, arm 45 of the linespacing lever extends forward, the lever as a whole being mounted toturn on a headed pivot screw 46 on the bracket 22, said pivot having avertically disposed axis. As the lever arm 45 is swung from'left toright it not only actuates the line spacing mechanism but returns the Inthe movement of the lever around its pivot the point of pivotalconnection 43 travels fore-and-aft of the machine substantially in theplane of the escapement wheel, and a corresponding longitudinal slidingmovement is transmitted to the carrier 27.

A depending pin 47 on the line spacing lever passes down through asegmental slot 48 in the bracket 22. Beneath the bracket a coiled,contractile, returning spring 49 is connected at one end to the pin 47and at the other end to a pin 50 carried by a bracket 51 connected tothe bottom of the bracket 22. The spring 49 returns the line spacinglever and the parts connected therewith to normal position, the pin 47engaging one end wall of the slot and limiting the return motion of theparts.

In order to determine at what point in the effective throw of the linespacing pawl it shall engage the teeth of the line spacing wheel, andthus determine the extent of line spacing movement of the wheel, I haveprovided an adjustable line space regulating device which is showndetached in Fig. 6. This device, designated as a whole by the referencenumeral 52, is preferably made of sheet metal. The main body portion ofthe device is recessed at to provide a segmental bearing portion that isseated on the platen clutch housing 54 arranged concentrically with theplaten and connected to turn therewith.

In order to provide an additional support for the device 52,, and toguide it in its adjustment around the axis of the platen, I provide asheet metal guide riveted at 56 to the bracket arm 21. This guide isformed with a central finger 57 bent in one direction from the bodythereof in order to embrace the device 52 on one side thereof, and isprovided with two fingers 58 bcnt'in the opposite direction to embracethe device 52 on the opposite side thereof. In addition I provide asegmental slot 59 in the device 52, and through this slot extends ashouldered screw or bolt 60 headed at one end, as at 61, and threaded atthe other end to coact with a nut 62, the unthreaded shouldered portionof the screw passing through the slot 59. This screw passes freelythrough an opening in a depending arm 63 on the bracket 22, the nut 62being on the outside of the arm 63 and the head 61 coacting with theinner face of the device 52, thus acting to guide and support said device ifrom opposite sides without unduly clamping it against the bracketarm 63, so that the device 52 is free to be adjusted. The device 52 hasan offset curved flange 64 projecting therefrom which extends over theteeth of the line spacing wheel and is concentric with the axis of saidwheel and the platen. The engaging nose 25 of the line spacing pawlnormally rests on the flange 64 as shown in Fig. 8, the flange acting asan adjustable shield over which the pawl slides in its line spacingmovement. \Vhen the pawl rides oif'the shield it will engage a tooth ofthe line spacing wheel and turn the wheel and platen the requireddistance depending on the position of adjustment of the regulator 52 andits shield 64:.-

In order to'provide for an adju'stmentof the device 52 to-diflerentpositions where it will afford a line spacing movement at each actuationof the pawl forthe extent of two,

three, four, five or six teeth of the wheel, I

provide detent mechanism which in the present instance is as follows:

An arm 65 is pivoted at one end on' the may be seated to hold the linespace regu lating device-52 in a corresponding position of adjustment. Acontractile spring 74 is connected at one end tothe guide 55' and at itsother end to said' arm 65, and exerts its force to maintain the pin 67seated inany of the depressions in which it may be received, such forcebeing exerted to move the pin towards the axis of the platen. A fingerpiece 75 projects laterally from the regulating device 52"to facilitateits adjustment. Extending laterally from the upper edge of the device 52is a flange 76 with in dices, such for example as the numerals 2, 3, 4and 5 with corresponding registering scale marks, each index beingsituated above one of the locking depressions in which the pm 67 rsreceived.

It will be understood that an adjustment of K the regulating device tobring any given index thereon into register with the pin 67 will causethe shield 64 to be set to afforda corresponding line spacing movementof V the wheel for the extent of two, three,tour;-

five or six teeth of the wheel, for spacing 1,

1%, 2, 2 or 3 line spaces respectively, depending on such adjustment.

lIn order to prevent an overthrow of the line spacing wheel and platen,I provide an extension 77 on the free end of the line spacmgtpawlWlllCll' terminates inaa contact 78.. The free end: of the pawl takes acurvilinear movement during its line spacing operation from the dottedto the full llne position in Fig. 2, and the contact 78 on the pawl willalways be'brought into contactive engagement with the bottom of thesupporting bracket at the end of the stroke, as shown in full 111165111Fig. 2. This vresults in positively and effectively locking 2 the nose25 of the pawl in engagment with they teeth or the wheel and preventingan overthrow of the wheel and platen.

The single-piece sheet metal bracket 22 is secured" tothe carriage byscrews 7 9 and 80' inv addition to the screw 23. 7

it will be understood that aside from the capability of adjusting theline space regulating device 52 to the five positions indicated,insteadof adjusting it only to the three positions indicated by theindex numerals l, 2 and S, the construction may be employed inconnection with a standard line spacing wheel in which one tooth is usedfor each minimum line space employed. In such case the substitution of aregulating device having only the three points of adjustment indicatedabove may be readily effected. V 1

From the foregoing description it will be understood that l haveprovided a comparatively simple, inexpensive and sturdy construction inwhich nearly all of the parts are struck up from sheet metal; whichaffords irregular as well as regular line spacing and which is highlyeffective in use.

Various changes may be made in the construction, andparts thereof may beemployed without others, without departing from my invention as it isaccompanying claims. v

hat I claim as new and desire to secure by Letters Patent, is

l. The combination 01" a line spacing wheel; a line spacing lever; apawl carrier overlying said wheel and supported at its rear endsubstantially in the plane of said wheel for approximaterectilinear-sliding movement fore-and-aft of the machine and having atits forward end a pivotal connection with an arm ofsaid lever, saidcarrier comprising a single piece of sheet" 2. The combination of a linespacing wheel, ajpawl therefor, aleaf spring for pressing said pawltowards the wheel, and means for attaching the spring to its sup port,said means-comprising a T shaped anchoringhead on the spring, arms onthe support spaced apart to receive the'body of the sprin and havingopen mouth recesses in which said head'is adapted to be seated, and across connection between the arms of said support overlying the body ofthe spring intermediate said head and the free defined in the end of thespring and which resists the outward'pressure of the spring and holdsthe cross head seated'in said recesses;

3. The combination-of a carriage, a line spacing wheel; a line' spacinglever, a pawl carrier actuated thereby and having substantially arectilinear operating move- 'ment, a line spacing pawl pivoted to saidcarrier, the free end portion of the pawl moving in a curved path initsengagement with the line spacing wheel, a supporting bracket by of theplaten, said supporting bracket to-- gether with the parts carriedthereby being detachable as a single unit from the carriage.

4. The combination of a line spacing wheel; a line spacing lever; a pawlcarrier overlying said wheel and supported at its rear end in the planeof said wheel for ap proximate rectilinear sliding movement fore-and-aftof the machine and connected at its forward end by a pivotal connectionwith an arm of said lever, said carrier comprising two connectedparallel side arms arranged above and substantially in the plane of saidwheel; and a line spacing pawl located between and pivoted to said armsand wholly in the plane of said wheel and extending down therefrom forengagement with said line spacing wheel during the rearward movement ofsaid carrier.

5. The combination of a line spacing wheel; a line spacing lever; a pawlcarrier overlying said wheel and supported at its rear end in the planeof said wheel for approximate rectilinear sliding movement fore-and-aftof the machine and having at its forward end a pivotal connection withan arm of said lever, said carrier comprising two connected parallelsheet metal side arms arranged above and substantially in the plane ofthe wheel; a line spacing pawl located between and pivoted to said armsand in the plane of the line spacing wheel; and a leaf spring anchoredat one end to said carrier and extending at its free end down betweenthe side arms thereof and pressing the engaging end of the pawl towardsthe line spacing wheel.

Signed at Middletown, in the county of Middlesex, and State ofConnecticut, this 14th day of April, A. D. 1927.

GEORGE Gr. GOING.

